- Patients must not have any active or prior documented autoimmune or inflammatory disease (including inflammatory bowel disease, diverticulitis with the exception of diverticulosis, celiac disease, irritable bowel disease; Wegener syndrome; Hashimoto syndrome) within 3 years prior to sub-study registration; patients with vitiligo, alopecia, Grave's disease, or psoriasis requiring systemic treatment within the past 3 years are not eligible